<script lang="ts" setup>
import { User, Lock } from '@element-plus/icons-vue'
import { ref, onMounted, } from 'vue'
import { ElMessage } from 'element-plus'

//控制注册与登录表单的显示， 默认显示登录表单
const isRegister = ref(false)
const date = ref('');
//定义数据类型
const registerData = ref({
    username: '',
    password: '',
    rePassword: ''
})

// 获取当前时间
//格式化时间的函数  。它接受一个数字类型的参数 time，表示需要格式化的时间。
//如果 time 小于10，则返回一个带有前导零的字符串表示；
//否则，将 time 转换为字符串后返回。
function formatTime(time: number) {
    return time < 10 ? `0${time}` : time
}
function updateTime() {
    const now = new Date()
    const year = now.getFullYear()  //年
    const month = now.getMonth() + 1 //月
    const day = now.getDate()    //日
    const hours = now.getHours()  //小时数
    const minutes = now.getMinutes()  //分钟数
    const seconds = now.getSeconds()  //秒数
    const week = ["星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六"][now.getDay()]  //星期
    //想展示什么  对应的展示即可 
    date.value = `${year}-${formatTime(month)}-${formatTime(day)} ${formatTime(hours)}:${formatTime(minutes)}:${formatTime(seconds)} ${week}`
}

onMounted(() => {
    updateTime()
})

setInterval(() => { updateTime() }, 1000);
// 销毁定时器
clearInterval(Number(updateTime()));

// 校验密码的函数
const checkRePassword = (rule: any, value: any, callback: any) => {
    if (value === "") {
        callback(new Error('请再次输入密码'))
    } else if (value !== registerData.value.password) {
        console.log(registerData.value.password)
        callback(new Error('密码错误'))
    } else {
        callback()
    }
}

// 定义表单规则
const rules = {
    username: [
        { required: true, message: '请输入用户名', trigger: 'blur' },
        { min: 1, max: 20, message: '长度为1~20位的字符', trigger: 'blur' },
    ],
    password: [
        { required: true, message: '请输入密码', trigger: 'blur' },
        { min: 6, max: 20, message: '长度为6~20位的字符', trigger: 'blur' },
    ],
    rePassword: [
        { validator: checkRePassword, trigger: 'blur' }
    ],
}

// 调用后台接口，完成注册
import { userRegisterService, userLoginService } from '@/api/user';

//如果请求不到，便是缺少异步方法
const register =async () => {
    //  registerData是一个响应式对象，要想获取值，要用.value
    let result: any =  await userRegisterService(registerData.value);
    if (result.code === 1) {
        // 成功
        ElMessage.success(result.msg ? result.msg : '注册成功')
      
        isRegister.value = false
        //借助于路由跳转
        
    } else {
        // 失败了
        ElMessage.error('注册失败')
    }
    // alert(result.msg ? result.msg : '注册成功')
    // ElMessage.success(result.msg ? result.msg : '注册成功')
}

// 绑定数据，复用注册表单的数据模型
// 表单的数据校验
//登录函数
import { useTokenStore } from '@/store/token.js'; 
import { useRouter } from 'vue-router'
// import {useUserInfoStore} from '@/store/user.js'
// const userInfoStore = useUserInfoStore();

const router = useRouter()
const tokenStore = useTokenStore();

const login = async () => {
    //调用接口

    let result: any = await userLoginService(registerData.value);

    console.log(registerData.value)

    if (result.code === 1) {
        ElMessage.success(result.msg ? result.msg : '登录成功')
        // 把得到的token存储到pinia中
        console.log(result)
        // tokenStore.persist.valueOf
        tokenStore.setToken(result.data)

        // userInfoStore.setInfo(result.data)

        // 这里判断用户的角色，并且跳转指定的页面
        //**** */
        //借助于路由跳转
        router.push('/main')

    } else {
        ElMessage.error('登录失败')
    }
    
}

// 定义函数，清空输入的数据
const clearRegisterData = () => {
    registerData.value = {
        username: '',
        password: '',
        rePassword: ''
    }
}
</script>

<template>

    <el-row class="login-page">
        <el-col :span="12" class="bg">
            <el-text type="primary"> {{ date }}</el-text>

        </el-col>
        <el-col :span="6" :offset="3" class="form">
            <!-- 注册表单 -->
            <el-form ref="form" size="large" autocomplete="off" v-if="isRegister" :model='registerData' :rules="rules">
                <el-form-item>
                    <h1>注册</h1>
                </el-form-item>
                <el-form-item prop="username">
                    <el-input :prefix-icon="User" placeholder="请输入用户名" v-model="registerData.username"></el-input>
                </el-form-item>
                <el-form-item prop="password">
                    <el-input :prefix-icon="Lock" type="password" placeholder="请输入密码"
                        v-model="registerData.password"></el-input>
                </el-form-item>
                <el-form-item prop="rePassword">
                    <el-input :prefix-icon="Lock" type="password" placeholder="请输入再次密码"
                        v-model="registerData.rePassword"></el-input>
                </el-form-item>
                <!-- 注册按钮 -->
                <el-form-item>
                    <el-button class="button" type="primary" auto-insert-space @click="register">
                        注册
                    </el-button>
                </el-form-item>
                <el-form-item class="flex">
                    <el-link type="info" :underline="false" @click="isRegister = false;clearRegisterData">
                        ← 返回
                    </el-link>
                </el-form-item>
            </el-form>
            <!-- 登录表单 -->
            <el-form ref="form" size="large" autocomplete="off" v-else :model="registerData" :rules="rules">
                <el-form-item>
                    <h1>登录</h1>
                </el-form-item>
                <el-form-item prop="username">
                    <el-input :prefix-icon="User" placeholder="请输入用户名" v-model="registerData.username"></el-input>
                </el-form-item>
                <el-form-item prop="password">
                    <el-input name="password" :prefix-icon="Lock" type="password" placeholder="请输入密码"
                        v-model="registerData.password"></el-input>
                </el-form-item>
                <el-form-item class="flex">
                    <div class="flex">
                        <el-checkbox>记住我</el-checkbox>
                        <el-link type="primary" :underline="false">忘记密码？</el-link>
                    </div>
                </el-form-item>
                <!-- 登录按钮 -->
                <el-form-item>
                    <el-button class="button" type="primary" auto-insert-space @click="login()">登录</el-button>
                </el-form-item>
                <el-form-item class="flex">
                    <el-link type="info" :underline="false" @click="isRegister = true;clearRegisterData()">
                        注册 →
                    </el-link>
                </el-form-item>
            </el-form>
        </el-col>
    </el-row>
</template>


<style lang="scss" scoped>
/* 样式 */


.login-page {
    height: 100vh;
    background-color: #fff;
    background: url('@/assets/bg.jpg');

    .bg {
        background: url('@/assets/logotest.png') no-repeat 60% center / 240px auto;
        //   url('@/assets/login_bg.jpg') no-repeat center / cover;
        border-radius: 0 20px 20px 0;
    }

    .form {
        display: flex;
        flex-direction: column;
        justify-content: center;
        user-select: none;

        .title {
            margin: 0 auto;
        }

        .button {
            width: 100%;
        }

        .flex {
            width: 100%;
            display: flex;
            justify-content: space-between;
        }
    }
}
</style>